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Delve into H. Fritzsch's seminal work on neutrino mixing, oscillations, and mass matrices alongside modern experiments like Cuore and Gerda. Discover the latest on neutrinoless double beta decay and the neutrino mass hierarchy.
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Flavor Mixing Neutrino Masses Neutrino Oscillations H. Fritzsch LMU Munich
c u t d s b flavor mixing quarks
flavor mixing angles - quark masses
mass matrices texture zero H. Fritzsch S. Weinberg 1978
6 quarkmasses 3 flavormixingangles
flavormixing -leptons-
H. Fritzsch - P. Minkowski Physics Letters 62B, 76 (1976) neutrino oscillations
neutrino mixing matrix (==> CKM Matrix)
normal mass hierarchy ( no inversion )
0.05 eV - 0.01 eV 0.01 eV - 0.004 eV -
???????? ??????? neutrinomasses verysmall ???????? ???????
neutrino Majorana mass ???
Neutrinoless Double Beta decay
e.g. !! not observed !!
Laboratori Nazionali del Gran Sasso
Cuore experiment effective Majorana neutrino mass < 0.140 eV
Gerda experiment
gerda experiment effective Majorana neutrino mass < 0.11eV…0.25 eV
eV experiment:
6 quarkmasses 6 leptonmasses 6 flavormixingangles
neutrinomasses m(1) ~ 0.004 eV m(2) ~ 0.01 eV m(3) ~ 0.05 eV
neutrinos ? Dirac mass ? ? Majorana mass ?
double betadecayexperiments effective Majorana neutrino mass m < 0.14 eV Expected: 0.016 eV !!!